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how to log SSL/TLS protocol usage for Exchange Server using the CRYPT_PROTOCOL server variable.

How to Plan Your Upgrade to Exchange Server Subscription Edition

Exchange Server subscription edition is here

[SMTP.SendAsApp] - Powershell script - Client Credential Flow for SMTP AUTH in Exchange Online

Understanding the Authenticated Received Chain (ARC).

Understanding the SPF, DKIM and DMARC

[Powershell script]-Get Message sent statistics from a mailbox in office 365

Configure the expiration policy for Office 365 groups

[Powershell script Graph Api] Fetch sign-in logs of legacy applications which are using basic authentication to connect to Exchange online in office 365.

[Powershell Script] - Office 365 MFA method report

Install ADFS on Azure VM step by step

Get the free third party SSL certificate and convert to pfx